A large flow balance pressure regulating valve

A balanced, high-flow technology, applied in the direction of balance valves, safety valves, valve devices, etc., can solve problems that affect product quality and service life, low temperature environment is not suitable, bellows have high requirements, to avoid easy wear and failure, cost The effect of low and less sealing links

Inactive Publication Date: 2016-01-20
铜陵市三圆机械制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, with the application of various fuel gases such as compressed natural gas (CNG) or liquids such as liquefied natural gas (LNG) in the automotive industry, traditional diaphragm pressure regulators often show many disadvantages under complex working conditions , such as the rupture and wear of the diaphragm; the inadaptability to the low temperature environment; and the vibration of large flow and strong air flow, etc., directly affect the quality and service life of the product
[0004] However, other structures on the market, such as the piston structure, mostly use multi-stage decompression, which is complicated in structure and high in cost; the bellows structure has high requirements for bellows and high cost

Method used

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  • A large flow balance pressure regulating valve
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Embodiment Construction

[0026] The specific implementation of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0027] like Figure 1 to Figure 4 The structure of the present invention shown is a large-flow balanced pressure regulating valve.

[0028] One, in order to solve the problems existing in the prior art and overcome its defect, realize the purpose of avoiding damage to the diaphragm due to large flow and large pressure fluctuations, the technical solution adopted by the present invention is:

[0029] like Figure 1 to Figure 4 As shown, the large-flow balanced pressure regulating valve of the present invention includes a valve body 01, a valve cover 02, a valve core 03, an input channel 106, an output channel 107, and a decompressi...

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Abstract

The invention discloses a mass-flow balanced type pressure regulating valve which comprises a valve body (01), a valve cover (02), a valve plug (03), an input channel (106), an output channel (107) and a pressure reducing structure. The pressure reducing structure is a single-stage pressure reducing structure, a piston (10) is arranged in the single-stage pressure reducing structure, one end of the piston (10) is contacted with the valve plug (3) through a compression bar (05), and the other end of the piston (10) is contacted with a regulating spring (19). According to the technical scheme, the single-stage pressure reducing is achieved, a piston type structure is adopted by a pressure reducing cavity, the piston assembly of the mass-flow balanced type pressure regulating valve is different from a traditional diaphragm type structure, and therefore the risk of damaging of a diaphragm caused by mass flow and large pressure fluctuation is reduced.

Description

technical field [0001] The invention belongs to the technical field of pressure regulating valves for liquid or gas. More specifically, the present invention relates to a high flow balanced pressure regulator. Background technique [0002] In the current domestic and foreign markets, large-flow regulators (such as flow rates greater than 100Nm3 / h) mostly use traditional diaphragm structures. For general industrial applications, due to single working conditions, simple use conditions, and low service life requirements , the membrane structure is suitable. [0003] However, with the application of various fuel gases such as compressed natural gas (CNG) or liquids such as liquefied natural gas (LNG) in the automotive industry, traditional diaphragm pressure regulators often show many disadvantages under complex working conditions , such as rupture and wear of the diaphragm; inadaptability to the low temperature environment; and vibration of large flow and strong airflow, etc....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K17/32
Inventor 李友生张凤记
Owner 铜陵市三圆机械制造有限公司
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